A. Lange & Söhne Datograph Perpetual, a watch has a chronograph with a fly-back jumping minute counter. The A. Lange & Söhne Datograph Perpetual watch can read in day-or-night,it’s convenient. What’s more,it case with a stop-seconds mechanism and a perpetual calendar which with day-of-the-week, date, month, and leap-year displays. 
In addition, the chronograph allows the user to measure time to one-fifth of a second. A. Lange & Söhne Datograph Perpetual just like the brand itself,never out of dated.
